I had no idea what this “Hunter Killer” was about, but I saw that Gerard Butler was in it and it was an action film. I was pleasantly surprised that it turned out to be a suspenseful submarine film pitting the U.S. Navy against a Russian general who stages a coup. There are some interesting plot twists and lots of suspense. In other times this would be labeled a ‘B” picture, but it is well done and keeps you guessing. If you like action films with a plot, go see this one.